Multiplexer receiver terminator

Claim 1

A device for a multiplexer receiver in a system having a plurality of multiplexer receivers connected on a common communication line wherein each multiplexer receiver has a time period for reception relative to a multiplexer time clock, comprising in combination: a counter circuit connected to the multiplexer time clock for providing a counter output upon registering a clock count between two preselected clock counts which correspond to the time period of the multiplexer receiver; a line receiver connected to the communication line for providing a line receiver output upon detecting a predetermined period of signal absence on the communication line; means connecting said line receiver output to said counter circuit for resetting said counter circuit after said predetermined period of signal absence; and means connecting said counter circuit output to the multiplexer receiver for enabling reception from the communication line only during a counter output of said counter circuit.

Claim 2

A device for a multiplexer receiver in a system having a plurality of multiplexer receivers connected on a common communication line wherein each multiplexer receiver has a time period for reception relative to a multiplexer time clock, comprising in combination: a counter circuit connected to the multiplexer time clock for providing a counter output upon registering a clock count between two preselected clock counts which correspond to the time period of the multiplexer receiver; a line receiver connected to the communication line for providing a line receiver output upon detecting a predetermined period of signal absence on the communication line; means connecting said line receiver output to said counter circuit for resetting said counter circuit after said predetermined period of signal absence; and means connecting said counter circuit output to the multiplexer receiver for enabling reception from the communication line only during a counter output of said counter circuit.

Claim 10

A device for a multiplexer receiver which receives plural information in a system having a plurality of multiplexer receivers on a common communication line wherein each multiplexer receiver is assigned a time period for reception relative to a multiplexer time clock, comprising in combination: a clock counter connected to the multiplexer time clock for providing a counter output upon registering a clock count between a first and a second preselected clock counts which correspond to the time period assigned to the multiplexer receiver; means for varying said preselected clock counts of said counter circuit to correspond to the time period assigned to the multiplexer receiver; a line receiver connected to the communication line for providing a line receiver output upon detecting a predetermined period of signal absence on said communication line; means connecting said line receiver output to said counter circuit for resetting said counter circuit after said predetermined period of signal absence; means connecting said counter circuit to the multiplexer receiver for enabling reception of the plural information from the communication line upon said clock counter counting said first preselected clock count; and means for disenabling reception of the plural information from the communication line upon said clock counter counting said second preselected clock count.

Claim 11

A device for a multiplexer receiver which receives plural information in a system having a plurality of multiplexer receivers on a common communication line wherein each multiplexer receiver is assigned a time period for reception relative to a multiplexer time clock, comprising in combination: a clock counter connected to the multiplexer time clock for providing a counter output upon registering a clock count between a first and a second preselected clock counts which correspond to the time period assigned to the multiplexer receiver; means for varying said preselected clock counts of said counter circuit to correspond to the time period assigned to the multiplexer receiver; a line receiver connected to the communication line for providing a line receiver output upon detecting a predetermined period of signal absence on said communication line; means connecting said line receiver output to said counter circuit for resetting said counter circuit after said predetermined period of signal absence; means connecting said counter circuit to the multiplexer receiver for enabling reception of the plural information from the communication line upon said clock counter counting said first preselected clock count; and means for disenabling reception of the plural information from the communication line upon said clock counter counting said second preselected clock count.

Claim 15

A device for connection to one of a plurality of multiplexer receivers on a communication line wherein each multiplexer receiver is assigned a unique reception period relative to a multiplexer clock generating clock pulses, comprising in combination: a programmable clock counter connected to the multiplexer clock for providing a first and a second clock counter output upon counting a first and a second preprogrammed number of multiplexer clock pulses which correspond to the beginning and the end of the unique reception period, respectively; means connecting said clock counter for initiating reception of the multiplexer receiver on the communication line upon said programmable counter counting said first preprogrammed number of clock pulses; means connecting said clock counter for terminating reception of the multiplexer receiver on the communication line upon said programmable counter counting said second preprogramed number of clock pulses; and means initiating said clock counter to count said preprogramed number of clock pulses upon silence existing on the communication line for a predetermined period.

Claim 16

A device for connection to one of a plurality of multiplexer receivers on a communication line wherein each multiplexer receiver is assigned a unique reception period relative to a multiplexer clock generating clock pulses, comprising in combination: a programmable clock counter connected to the multiplexer clock for providing a first and a second clock counter output upon counting a first and a second preprogrammed number of multiplexer clock pulses which correspond to the beginning and the end of the unique reception period, respectively; means connecting said clock counter for initiating reception of the multiplexer receiver on the communication line upon said programmable counter counting said first preprogrammed number of clock pulses; means connecting said clock counter for terminating reception of the multiplexer receiver on the communication line upon said programmable counter counting said second preprogramed number of clock pulses; and means initiating said clock counter to count said preprogramed number of clock pulses upon silence existing on the communication line for a predetermined period.

Claim 17

A device for a multiplexer receiver which receives plural information on a communication line having a plurality of multiplexer receivers connected thereto wherein each multiplexer receiver is assigned a specific time period for reception relative to a multiplexer time clock generating clock pulses, comprising in combination: a programmable clock counter connected to the multiplexer time clock for providing a first clock counter output upon counting a first preprogramed number of clock pulses which corresponds to the beginning of the specific time period assigned to the multiplexer receiver; said clock counter providing a second clock counter output upon counting a second preprogramed number of clock pulses which corresponds to the end of the specific time period assigned to the multiplexer receiver; a pause counter connected to the multiplexer time clock for providing a first and a second pause output upon counting a first and a second preselected number of clock pulses, respectively; means connecting said first output of said clock counter to said pause counter to commence counting of said first preselected number of clock pulses; means connecting said first pause counter output for enabling the multiplexer receiver to initiate reception of the plural information on the communication line; means connecting said second output of said clock counter for disenabling the receiver to terminate reception of the plural information on the communication line; means connecting said pause counter to the communication line for providing said second pause output upon a silence existing on the communication line exceeding said second preselected number of multiplexer clock pulses; and means connecting said pause counter to said clock counter for initiating counting of said clock counter upon said second pause output.

Claim 18

A device for a multiplexer receiver which receives plural information on a communication line having a plurality of multiplexer receivers connected thereto wherein each multiplexer receiver is assigned a specific time period for reception relative to a multiplexer time clock generating clock pulses, comprising in combination: a programmable clock counter connected to the multiplexer time clock for providing a first clock counter output upon counting a first preprogramed number of clock pulses which corresponds to the beginning of the specific time period assigned to the multiplexer receiver; said clock counter providing a second clock counter output upon counting a second preprogramed number of clock pulses which corresponds to the end of the specific time period assigned to the multiplexer receiver; a pause counter connected to the multiplexer time clock for providing a first and a second pause output upon counting a first and a second preselected number of clock pulses, respectively; means connecting said first output of said clock counter to said pause counter to commence counting of said first preselected number of clock pulses; means connecting said first pause counter output for enabling the multiplexer receiver to initiate reception of the plural information on the communication line; means connecting said second output of said clock counter for disenabling the receiver to terminate reception of the plural information on the communication line; means connecting said pause counter to the communication line for providing said second pause output upon a silence existing on the communication line exceeding said second preselected number of multiplexer clock pulses; and means connecting said pause counter to said clock counter for initiating counting of said clock counter upon said second pause output.